/**
 * Copyright (C) 2009 - 2013 SC 4ViewSoft SRL
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.achartengine.chartdemo.demo.chart;

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Typeface;
import org.achartengine.ChartFactory;
import org.achartengine.chart.PointStyle;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer.FillOutsideLine;

import java.util.ArrayList;
import java.util.List;

/**
 * Sales comparison demo chart.
 */
public class SalesComparisonChart extends AbstractDemoChart {
    /**
     * Returns the chart name.
     *
     * @return the chart name
     */
    public String getName() {
        return "Sales comparison";
    }

    /**
     * Returns the chart description.
     *
     * @return the chart description
     */
    public String getDesc() {
        return "Monthly sales advance for 2 years (interpolated line and area charts)";
    }

    /**
     * Executes the chart demo.
     *
     * @param context the context
     * @return the built intent
     */
    public Intent execute(Context context) {
        String[] titles = new String[]{"Sales for 2008", "Sales for 2007",
                "Difference between 2008 and 2007 sales"};
        List<double[]> values = new ArrayList<double[]>();
        values.add(
                new double[]{14230, 12300, 14240, 15244, 14900, 12200, 11030, 12000, 12500, 15500,
                        14600, 15000}
                  );
        values.add(
                new double[]{10230, 10900, 11240, 12540, 13500, 14200, 12530, 11200, 10500, 12500,
                        11600, 13500}
                  );
        int length = values.get(0).length;
        double[] diff = new double[length];
        for (int i = 0; i < length; i++) {
            diff[i] = values.get(0)[i] - values.get(1)[i];
        }
        values.add(diff);
        int[] colors = new int[]{Color.BLUE, Color.CYAN, Color.GREEN};
        PointStyle[] styles = new PointStyle[]{PointStyle.POINT, PointStyle.POINT, PointStyle.POINT};
        XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles);
        setChartSettings(
                renderer, "Monthly sales in the last 2 years", "Month", "Units sold", 0.75,
                12.25, -5000, 19000, Color.GRAY, Color.LTGRAY
                        );
        renderer.setXLabels(12);
        renderer.setYLabels(10);
        renderer.setChartTitleTextSize(20);
        renderer.setTextTypeface("sans_serif", Typeface.BOLD);
        renderer.setLabelsTextSize(14f);
        renderer.setAxisTitleTextSize(15);
        renderer.setLegendTextSize(15);
        length = renderer.getSeriesRendererCount();

        for (int i = 0; i < length; i++) {
            XYSeriesRenderer seriesRenderer = (XYSeriesRenderer) renderer.getSeriesRendererAt(i);
            if (i == length - 1) {
                FillOutsideLine fill = new FillOutsideLine(FillOutsideLine.Type.BOUNDS_ALL);
                fill.setColor(Color.GREEN);
                seriesRenderer.addFillOutsideLine(fill);
            }
            seriesRenderer.setLineWidth(2.5f);
            seriesRenderer.setDisplayChartValues(true);
            seriesRenderer.setChartValuesTextSize(10f);
        }
        return ChartFactory.getCubicLineChartIntent(
                context, buildBarDataset(titles, values), renderer,
                0.5f
                                                   );
    }
}
